President Trump stepped up his attacks on Kim Jong-un on Friday, slamming the North Korean leader with nuclear ambitions as “obviously a madman who doesn’t mind starving or killing his people.”

In a series of morning tweets that also included attacks on Sen. Rand Paul and the mainstream media, the president vowed that Kim “will be tested like never before!”

The tweet comes just one day after North Korea issued a formal statement attributed to Kim calling Trump “the mentally deranged U.S. dotard” following Trump’s speech before the U.N. General Assembly on Tuesday labeling Kim as “Rocket Man” and threatening to “totally destroy” North Korea.

“A frightened dog barks louder,” Kim’s statement said. “I will make the man holding the prerogative of the supreme command in the U.S. pay dearly for his speech calling for totally destroying the DPRK.”

Kim Jong Un of North Korea, who is obviously a madman who doesn't mind starving or killing his people, will be tested like never before!

Also on Friday, Trump called out Sen. Rand Paul (R-Kentucky) for his stated opposition to a bill coauthored by Senators Bill Cassidy and Lindsey Graham bill that seeks to repeal the Affordable Care Act.

Trump hinted at “future political campaigns” that would tar his former presidential rival as “the Republican who saved ObamaCare.”

Rand Paul, or whoever votes against Hcare Bill, will forever (future political campaigns) be known as "the Republican who saved ObamaCare."

In another tweet, he repeated his attack on the ongoing investigation of Russia’s interference in the U.S. election last year, which he again called “the Russia hoax.”

He instead blamed “totally biased and dishonest Media coverage” and renewed his description of former Secretary of State Hillary Clinton, the Democrat he defeated in the general election, as “Crooked Hillary.”

The Russia hoax continues, now it's ads on Facebook. What about the totally biased and dishonest Media coverage in favor of Crooked Hillary?

Trump also took the opportunity to boast about his popularity on his favorite social media platform, retweeting a chart showing that he was the “most Tweeted about world leaders” during the first day of the UN General Assembly.

You can't have "the best words" if you can't correctly spell them. Even more serious than the Trump administration's beef with CNN is its beef with grammar, as is evidenced by a score of tweets and official White House documents that are riddled with spelling errors, misused words and downright gibberish. Here are 21 of the worst (and most laughable) offenses.

"Innaccurately"

Oh, the irony! The White House tried to call out the Congressional Budget Office for inaccuracy but inaccurately spelled the word "innaccurately."

White House/Twitter

"Honered"

Before "covfefe," there was "honered." Of course, newly-inaugurated Trump meant to tweet that he was "honored," but that's not what happened.

Twitter

"Unpresidented"

According to Huffington Post, Trump Twitter-slammed China for seizing a U.S. underwater drone in December 2016. He also made up a word in the process. By “unpresidented,” we can assume he meant “unprecedented.”

Twitter

"San Bernadino"

The White House got a few things wrong with this list of “unreported” terror attacks. First, many of the incidents actually had been reported. Second, “San Bernardino” was spelled incorrectly.

White House/Twitter

"Attaker"

In the same report, the WH managed to misspell “attacker” 23 times in a row. That has to be some sort of record.

White House/Twitter

"W.E.B. DeBois"

The U.S. Department of Education (DOE) botched the name of legendary civil rights activist, W.E.B. DuBois. It’s DU Bois, as in “DU” they realize the epic mistake they made?

Twitter

"Deepest apologizes"

Apparently, the DOE did catch the gaffe and subsequently tweeted out an apology… sort of.

Twitter/The Washington Post

"Columbia"

This is a common spelling error that also tripped up Steve Harvey in the past. For the record, when referring to the country, the correct spelling is "Colombia."

White House/Twitter

“Possibility of lasting peach”

According to a White House press release, one of Trump’s objectives during his most recent visit to Israel was to “promote the possibility of lasting peach” between Israelis and Palestinians. Who needs peace when you can have peaches?

White House/Twitter

“Couple with changes”

Another typo from the same press release. This time, someone left off the “d” in the word “coupled.” Hence, we have “A new approach, couple with changes.”

White House/Twitter

"Councel"

After Trump tweeted this misspelling on May 18, Merriam-Webster reported that "councel" was their most-searched word of that day.

Twitter/The Hill

"Tapp"

President Obama did not "tapp" Trump's phone at any time during his two terms in office, because there is no such word as "tapp" in the English language.

Twitter

Too vs. To

This was not a tweet. This was Donald Trump's official inauguration portrait... with an egregious typo printed front and center.

Library of Congress

"Teresa May"

This mistake doesn’t seem too critical… until you consider the fact that Teresa (sans “h”) May is the name of a British porn star, not the British Prime Minister. The latter spells her first name with an "h."

White House/Huffington Post

"Hear by"

He should have typed "hereby." Of course, POTUS received a lot of flack for this one, among his many other botched spellings.

Twitter/Pro Publica

"Educatuon"

Failure took the form of a White House Snapchat on April 17. There's no excuse for this one.

Welcome to the White House: where the words are made up, and spellcheck doesn’t matter

You can't have "the best words" if you can't correctly spell them. Even more serious than the Trump administration's beef with CNN is its beef with grammar, as is evidenced by a score of tweets and official White House documents that are riddled with spelling errors, misused words and downright gibberish. Here are 21 of the worst (and most laughable) offenses.